Which one of the following is not a Common component of photochemical smog

Options

(a) Ozone
(b) Acrolein
(c) Peroxyacetyl nitrate
(d) Chlorofluorocarbons

Correct Answer:

Chlorofluorocarbons

Explanation:

The oxidised hydrocarbons and ozone in presence of humidity cause photochemical smog.Hydrocarbons +O₂, NO₂,NO,O, O₃→Peroxides formaldehyde, peroxyacetyl -nitrate (PAN), acrolein etc.,Hence chlorofluro carbons are not common component of photochemical smog.